[+] Show Closed Private Schools in Windham County, Connecticut

Windham County Private Schools (Closed)

Plainfield Catholic School

Gr: PK-8 | 216 students

Catholic

120 Prospect Street

Moosup, CT 06354

(860) 564-3476

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St. Mary School

Gr: K-9 | 154 students

Catholic

23 Marshall St

Putnam, CT 06260

(860) 928-7046

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Overview

Academics and Faculty:

# Teachers

262 Teachers

7,896 Teachers

Average Student-Teacher Ratio

6:1

8:1

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Showing 2016–2025. Full 11-year historical data available below ↓

Student-Teacher Ratio Trends (2015-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	6:1	8:1	11:1
2024	7:1	8:1	11:1
2023	6:1	8:1	11:1
2022	6:1	8:1	11:1
2021	6:1	8:1	11:1
2020	6:1	8:1	12:1
2019	7:1	8:1	12:1
2018	8:1	8:1	12:1
2017	8:1	9:1	12:1
2016	8:1	9:1	12:1
2015	8:1	9:1	12:1

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% Average Faculty w/Advanced Degree

70%

71%

Average Class Size

12 students

14 students

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Class Size Trends (2015-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	12	14	15
2024	12	13	15
2019	11	14	15
2018	11	14	15
2017	11	14	15
2016	11	14	15
2015	11	13	15

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Average Number of AP Courses

22 courses

18 courses

Average SAT score

1190

(Out of 1600)

1255

Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$31,695

$29,145

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Tuition Cost Trends (2015-2025)
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	$32,622	$28,288	$15,012
2018	$24,184	$24,008	$12,363
2017	$23,752	$23,377	$12,049
2016	$23,330	$22,763	$11,633
2015	$21,710	$21,660	$11,174

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Average Summer Program Cost

$5,550

$3,778

Average % on Financial Aid

45%

37%

Average Financial Aid Grant

$7,875

$18,064

Average Acceptance Rate

85%

72%

Average Endowment Size

$26 million

$65.67 million

Students by Ethnicity:

0.54

0.63

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Diversity Score Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	0.48	0.63	0.65
2024	0.53	0.63	0.65
2023	0.67	0.62	0.65
2022	0.66	0.59	0.64
2021	0.64	0.59	0.64
2020	0.63	0.59	0.64
2019	0.56	0.56	0.63
2018	0.57	0.56	0.63
2017	0.59	0.53	0.61
2016	0.59	0.54	0.61
2015	0.58	0.54	0.61

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# American Indian Students

10 Students

716 Students

% American Indian Students

# Asian Students

146 Students

2,908 Students

% Asian Students

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Showing 2016–2025. Full 11-year historical data available below ↓

Asian Student Percentage Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	10%	5%	5%
2024	9%	5%	5%
2023	11%	5%	5%
2022	10%	5%	4%
2021	8%	5%	4%
2020	9%	5%	4%
2019	8%	5%	4%
2018	7%	5%	4%
2017	8%	4%	4%
2016	8%	4%	4%
2015	7%	4%	4%

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# Hispanic Students

122 Students

5,562 Students

% Hispanic Students

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Showing 2016–2025. Full 11-year historical data available below ↓

Hispanic Student Percentage Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	8%	9%	9%
2024	8%	9%	9%
2023	12%	8%	9%
2022	7%	7%	8%
2021	7%	7%	9%
2020	7%	8%	9%
2019	5%	6%	8%
2018	5%	6%	8%
2017	4%	5%	8%
2016	4%	6%	8%
2015	5%	6%	8%

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# Black Students

111 Students

4,891 Students

% Black Students

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Showing 2016–2025. Full 11-year historical data available below ↓

Black Student Percentage Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	7%	8%	7%
2024	7%	8%	7%
2023	6%	7%	8%
2022	9%	8%	7%
2021	7%	8%	7%
2020	7%	8%	8%
2019	2%	7%	7%
2018	2%	7%	7%
2017	2%	7%	7%
2016	2%	7%	7%
2015	2%	8%	8%

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# White Students

1,067 Students

34,906 Students

% White Students

66%

56%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

White Student Percentage Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	71%	56%	52%
2024	67%	56%	52%
2023	52%	58%	52%
2022	53%	61%	54%
2021	55%	60%	54%
2020	56%	60%	54%
2019	62%	64%	56%
2018	61%	64%	56%
2017	57%	66%	58%
2016	57%	65%	58%
2015	58%	65%	58%

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# Hawaiian Students

0 Students

63 Students

% Hawaiian Students

<1%

# Others Students

150 Students

12,857 Students

% of Others Students

21%

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Showing 2016–2025. Full 11-year historical data available below ↓

Other Races Student Percentage Trends
Year	Windham County Average	Connecticut (CT) Average	National Average
2025	3%	21%	26%
2024	8%	21%	26%
2023	19%	20%	25%
2022	21%	19%	25%
2021	23%	20%	25%
2020	21%	19%	24%
2019	23%	18%	24%
2018	25%	18%	23%
2017	29%	18%	22%
2016	29%	18%	22%
2015	28%	17%	21%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

21 extracurriculars

13 extracurriculars

Average Number of Sports

13 sports

9 sports

Frequently Asked Questions

What are the top ranked private schools in Windham County, CT?

The private schools in Windham County, CT include Rectory School, Marianapolis Preparatory School, and Ms. Phelps' Preparatory School.

How many private schools are located in Windham County?

12 private schools are located in Windham County.

How diverse are private schools in Windham County?

Windham County private schools are approximately 28% minority students, which is lower than the Connecticut private school average of 32%.

What percentage of students in Windham County go to private school?

9% of all K-12 students in Windham County are educated in private schools (compared to the CT state average of 12%).

What percentage of private schools are religiously affiliated in Windham County?

38% of private schools in Windham County are religiously affiliated (most commonly Catholic and Seventh Day Adventist).

Which private schools in Windham County are often viewed compared to one another?

Popular comparisons of private schools in Windham County include: Marianapolis Preparatory School vs. Pomfret School, St. James School vs. St. Mary St.. Joseph School, Putnam Science Academy vs. Pomfret School

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